Portable turn-table.



W. L. WARD.

PORTABLE TURN TABLE.

APPLICATION FILBD'oG-lz. 1914.

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Patented Jan. 5, 1915.

W. L. WARD.

PORTABLE TURN TABLE. I

APPLmATIoN FILED ocT.28.1914.

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WEBSTER LEE WARD, OF MOHAWK, TENNESSEE, ASSIGNOR T0 CURTIS-'WARDCOMPANY, 0F CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

PORTABLE TURN-TABLE.

Specification of Letters Patent.

Patented Jan. 5, 1915..

To all 'whom t may concern:

Be it known that I, IVEBSTER LEE WARD, a citizen of the United States,residing at Mohawk, in the county of Greene, State of Tennessee, haveinvented a new and useful Portable rlurn-'lfabla of which the followingis a specification.

lvfy invention relates to portable turntables and particularly toturn-tables designed and adapted for use in connection with constructionwork and road building.

lIhe object of the invention is to provide a turn-table readily andeasily transportable on soft earth and ordinary road beds without thenecessity for building permanent and expensive tracks or floors.

A further object is to provide a portable turn-table whereon heavy motortrucks, used in construction work and road building, may be turnedwithin their own length at the point of use facilitating such work byreducing the time necessary to travel to a point where such truck couldordinarily be turned; also avoid traveling over the portion of the roadalready constructed.

A further object is to provide such a turn-table as can be moved fromplace to place by the power of the motor or other trucks and vehicleswhich it is designed to turn.

Another object is to provide a turn-table so simple in construction asto be capable of assemblage by any ordinary workman and having so fewparts so arranged as to be durable as well as simple in construction andeconomical in cost of building. The entire turn-table maybe made ofmetal if desired.

The special and novel phase of the invention here disclosed will bebetter understood from reference to the following detailed descriptionwhich is to be taken in conjunction with the accompanying drawings,wherein- Figure' 1 is a plan view of my portable turn-table illustratingthe structure in the position and as assembled for use. Fig. 2 is a sideelevation of same, showing the approaches to the structure proper andthe curved ends of the skids which support and render mobile the entirestructure. Fig. 3 is a vertical transverse section taken upon the planeindicated by line A A in Fig. 1. Fig. 1 is a transverse horizontalsection taken on line B B of Fig. 3. Fig. 5 is a detailed view of one ofthe four wheel members arranged on the I-beams at each side of the pivotI beam as shown in Fig. 1. Fig. 6 is a detailed view of the wheelmembers arranged intermediate of and parallel with the skids. Fig. 7 isa detailed View of the four corner wheel members which are locatedbetween the wheels shown in detail in Figs. 5 and 6. Fig. 8 is adetailed view of the means for fastening the I beams to the skids.

The illustrated embodiment of my invention, which although consisting offew parts, easily assembled, comprises three main members, the base,support or skids 1 1 with the I beams 2 placed thereon and fastenedthereto and the wheels 3 arranged on the I beams as shown in Fig. 1; thecircular track comprising two semicircular T irons so placed as to forma complete circle and supported upon the wheel 3; and the track 5 5 withthe approaches thereto at both ends 6 6, the track being supported andcarried by the circular track 4L.

In carrying out the invention and in practice I first provide the skids1 1 preferably of channel iron, curved up at both ends, the length ofthe skids preferably being the same Vas the length of the tracks 5 5although they may extend beyond so long as they do not interfere withthe positioning of the approaches 6 as best shown in Fig. 2. It isdesirable to have the skids or runners of suiiicient width so that theentire structure will not cut too deeply into the soft earth or road bedthus facilitating transportation. These skids or runners 1 1 might alsobe made of wood if desired and when so made should be sheathed with ametal strip extending over the curved ends. Each end of the skids 1 1should be provided with holes 7 for attaching a chain or tongue or othersuitable means for connecting the power used in moving the entirestructure from place to place. Upon the skids 1 1 I next position the Ibeams 2 best shown in Fig. 1 preferably five in number although agreater number can be used if desired. These I beams must be sodistanced and arranged as to support the wheels in the proper places toconform to the circular track 4 as shown in Fig. 1, the best resultsbeing obtained in the operatlon of the circular track by having thenumber of wheels 3 arranged as shown in Fig. 1, the particulararrangement of the wheels being more specifically described hereinafter.In practice I have found the arrangement shown in Fig. 8 satisfactory asmeans for fastening the I beams 2 to the skids 1 1 although I do notwish to be limited to that method of fastening. The fastening means asshown in Fig. 8 are preferably riveted to the I beams 2 by means ofrivets 9 so that there will be few small parts in shipment obviating thedanger of 'losing them or difficulty in assembling and provided withholes so that they may be bolted to the skids by means of bolts 10.

` The two wheels on the pivot I beam are arranged and attached as shownin Figs. 3 .and 4, Fig. 3 showing a vertical sectional view of thefastening means and Fig. 4 showing a horizontal sectional view of thesame fastening' means. The axle member 11 is so shaped that the circularwheel slips over it and is retained in position by a pin 12?. At theback of the wheel the axle is provided with a shoulder 13 so that thewheel is maintained in fixed position. Beginning from the shoulder thespindle is shaped so that it fits over and registers with the I beam andis fastened thereto by means ofy bolts or rivets 14 as shown in Figs. 3and 4. All of the wheels 3 as used in my invention have a flange orprojection on the inner side so that the circular track 4 will travelthereon in a definite, fixed position. These wheels are, in practice,necessarily large enough so that they will support the load and permitthe circular track to be turned quickly and easily.

The wheels to be carried by the I beams immediatelyat either side of thepivot I beam are placed and fastened to those I beams as shown in Fig. 5being different from the arrangementshown in Fig. 4 only in that theaxle is longer and bent so as to conform to the circular track 4. Thetwo wheels supported at the center of the outermost-I beams are placedand fastened as shown in Fig. 6, the arrangement of the wheel on theaxle being as previously ex- 50,

rplainedin regard to Fig. 4. The axle however lis shorter and terminatesat the back in they plate 15 which lits against the I beam and isfastened thereto by means of bolts or rivets 16. The wheels arranged ateach end 0f the outermost I beams are fastened'thereto substantially asshown in Fig. 7,: the support .for these wheels being fastened to theskids 1 1 and having two upright members 17 17, the axle of the wheel-itting into the uprights on either side and held in place by means ofthe pins v18 18.

The circular track 4 is preferably made of two' pieces of T iron eachbent to make a yli'alflci'rcle ,sov that when-the two are broughttogether and fastened by any suitable means they form a circle, ofrequired size. This circular track rests upon and registers with thelocation of the wheels as already described so that the circular trackis held in place without engaging the fiange or inner projection of thewheels. Upon the circular track are arranged two tracks 5 5 of channeliron of sufficient width to accommodate the wheel of any motor or othertruck or vehicle, curved outwardly at the ends as shown at 20 so thatthe wheels will not strike a sharp corner and be injured in driving onto the turn-table. Tracks 5 5 are provided at both the outer and inneredge with flanges to prevent the vehicle from slipping off the inneredges have provided an additional angle iron into which planking 21fits; it is necessary in practice to use this planking between tracks 55 so that ordinary road traffic can pass over the turn-table. Thisflooring 21 can be made of plain or corrugated sheet metal in one ormore pieces so that the entire structure can be made of metal ifdesired. The tracks 5 5 are fastened to the circular track 4 by means ofcountersunk bolts 22.

Between the tracks 5 5 is placed a brace of channel iron 23 fastened tothe under side of the tracks 5 by means of countersunk bolts 24 and isdesigned to give rigidity to the entire structure, to maintain thetracks in their proper position and to insure the perfect operation ofthe circular track 4. This channel bar 23 is designed to receive theking bolt 25 as shown in Fig. 3, the king bolt being countersunk asthere shown and placed directly in the center of the circle formed bythe circular track so that perfect balance and concentricity will bemaintained at all times.

In using the above described structure for turning motor and othertrucks and vehicles, it is necessary to have approaches 6 6 so placed asshown in Fig. 2 as to permit the truck to be run on to the track ofturntable in balance so that circular track of turntable may be turnedabout by means of levers 26. When the truck has been turned by means ofthe turn-table to the position desired for dumping the load, it willthen be facing so that it can be driven directly off the turn-table inthe same direction from whence it came.

By means of the above described structure it will be seen that aturn-table has been provided which may be moved from place to place inroad building by the power and means ordinarily and usually thereavailable with perfect ease and without building any ioor or tracks andat the same time be capable of use as a turn-table at any place and inany position and upon any character of. support, it usuallyrestingmerely-upon the earth of the road bed.

While I have herein disclosed onel embodiment of the present invention Iam aware that changes in detail may be made without devating from thespirit thereof and I desire that the protection here sought shouldinclude such changes and modifications in detail as reasonably may bemade within the terms of the appended claims.

Having fully described my invention what I claim and desire to secure byLetters Patent is:

l. In a turn-table the combination of a frame, a pair of runners forcarrying said frame, a circular track rotatably mounted on said frameand a vehicle support on said circular track.

2. In a turn-table the combination of a frame, a pair of runners forcarrying said frame, a circular track rotatably mounted on said frameand a vehicle support movable with said circular track.

3. In a turn-table the combination of a frame, a pair of runners forcarrying said frame, a plurality of rollers, a circular track rotatablymounted on said frame and adapted to be carried by said rollers and aVehicle support movable with said circular track.

4. In a portable'turn-table the combination of a frame, parallel runnersfor carrying said frame, bars mounted thereon provided with rollers, acircular track rotatably mounted on said frame and adapted to be carriedon said rollers for the purpose set forth.

5. A turn-table comprising a frame having parallel skids, bars providedwith rollers mounted thereon, a circular track rotatably mounted on saidframe and carried by said rollers, tracks mounted on said circulartrack, approaches to the tracks substantially as and for the purpose setforth.

6. In a turntable the combination of two parallel bars forming skids orrunners rendering the entire structure mobile, bars mounted thereonprovided with wheels upon which are supported and carried a completerotatable circular track, parallel track members mounted upon saidcircular track and secured thereto, means for securing their respectiveparts in place and together, approaches to the tracks, levers forturning the circular track and a central pivot as described and shown.

In witness whereof, I hereunto subscribe my name to this specificationin the presence of two witnesses.

WEBSTER LEE WARD.

W'itnesses:

G. A. GOLDER, Guo. W. SIMONS.

Topica of this patent may he obtained for ve cents each, by addressingthe Commissioner of Patents, Waehnton, D. G.

